Portable spare battery jacket for phone



FIG. 1 is a front elevational view of a portable spare battery jacket for phone showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is a perspective view thereof when the portable spare battery jacket for phone is folded for use. 

The ornamental design for a portable spare battery jacket for phone, as shown. 